56070780769 has 4 divisors (see below), whose sum is σ = 56071410480. Its totient is φ = 56070151060.

The previous prime is 56070780763. The next prime is 56070780781. The reversal of 56070780769 is 96708707065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56070780769 - 2³ = 56070780761 is a prime.

It is a super-2 number, since 2×56070780769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56070780761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153847 + ... + 368524.

It is an arithmetic number, because the mean of its divisors is an integer number (14017852620).

Almost surely, 2^56070780769 is an apocalyptic number.

It is an amenable number.

56070780769 is a deficient number, since it is larger than the sum of its proper divisors (629711).

56070780769 is a wasteful number, since it uses less digits than its factorization.

56070780769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629710.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 56070780769 in words is "fifty-six billion, seventy million, seven hundred eighty thousand, seven hundred sixty-nine".